
50
Ideal Viscount GTE
- Installation, Assembly & Servicing
Connecting the burner
The control panel is supplied with the burner power cable.
One end of the cable has two 7 and 4-pin European plugs which
are connected to the burner connectors. The other end of the cable
is connected to the control panel.
CONTROL PANEL
VIS5146
7-pin plug for
one-stage burners
or stage 1 of
two-stage burners.
4-pin plug for
stage 2 of the
burner.
Burner without plug-in connectors
In this case, the connectors supplied with the burner cable must be
rewired.
The diagram opposite shows the wire numbers and the terminals of
the burner connectors.
The table below specifies the way in which the cables are to be
connected on the burner control box.
B4 S3 T2 T1 N
V/J
L1
B5 T6 T7 T8
6
5
4
3
1
2
4
1
2
3
VIS5161
Connector
Wire
From
Connection to the burner Control Box
Terminal No
No
L1
2
Continuous phase from the safety thermostat
Burner main supply
V/J
Earth connection
Earth connection
N
1
Neutral taken after On/Off
Neutral terminal
T1/T2
3/4
Dry contact of the stage 1 boiler thermostat
Insert in the control circuit of boiler stage 1
S3
5
Burner alarm indicator
Alarm output (phase)
B4
6
Stage 1 On indicator (or hour run meter)
Stage 1 operation monitoring output (phase)
B5
4
Stage 2 On indicator (or hour run meter)
Stage 2 operation monitoring output (phase)
T6
1
Stage 2 boiler thermostat input
Insert in the control circuit of burner stage 2
T7
2
Stage 2 "boiler off" thermostat output
Connect only if the burner is of the modulating type
T8
3
Stage 2 "boiler on" thermostat output
Insert in the control circuit of burner stage 2
If the electrical characteristics of the burner exceed the following
values:
-
start current> 16 A or
-
P > 450 W (or 1/2 cont. hp. motor), or
-
I > 2 A cos
ϕ
= 0, 7
The burner controls must be relayed.
VIS5149
7-pin plugs for connecting
to the control panel and
burner connectors